Analysis by fire assay has been used for centuries.
Fire Assay Analysis
Fire assaying has been practiced since ancient times and has proven to be very reliable in the determination of precious metals. References to fire assaying are found in the Old Testament of the Bible and artifacts in past civilizations’ ruins. Assaying began to appear in French and English literature in the 12th century and from there spread to the rest of Europe shortly after. The substances that can be fire assayed can be ores, metallic solutions, and any material that is thought to be containing gold and silver. It uses scientific methodology, and it is a branch of analytical and inorganic chemistry.
Profiners has optimized the Fire Assay method for karat gold jewelry and sterling silver. This technique of analyzing precious metals may also be applied to gold content as low as 1% to as high as 99% purity. The main factor for an accurate assay is homogeneous sampling. Jewelry samples can be tricky to analyze due to the solder that may be part of the piece. There may also be steel pins that need to be recognized and not incorporated in the testing process. Profiners prides itself on quick and accurate results using the Fire Assay method.
Assay Balance– Samples weighed to
6 digits for better accuracy
Hot Cupels – Full set of samples after cupellation
